nmap 端口扫描工具

nmap 端口扫描工具

nmap 安装

rpm -vhU https://nmap.org/dist/nmap-7.93-1.x86_64.rpm

查看安装版本信息

nmap -v
Starting Nmap 7.93 ( https://nmap.org ) at 2022-12-28 10:34 CST
Read data files from: /usr/bin/../share/nmap
WARNING: No targets were specified, so 0 hosts scanned.
Nmap done: 0 IP addresses (0 hosts up) scanned in 0.04 seconds

• nmap

用法

查看 103.234.22.131 的 udp 端口是否连通

sudo nmap -sU -p 3478 103.234.22.131
Starting Nmap 7.93 ( https://nmap.org ) at 2022-12-28 10:38 CST
Nmap scan report for 103.234.22.131
Host is up (0.00027s latency).

PORT     STATE SERVICE
3478/udp open  stun

Nmap done: 1 IP address (1 host up) scanned in 0.11 seconds

查看 IPV4 端口上的 tcp 的监听

sudo netstat -lntp --inet
sudo netstat -lntp --inet6

扫描 TCP 端口

sudo nmap 103.234.22.131 -sT -p1-65535

扫描 UDP 端口

sudo nmap 103.234.22.131 -sU -p1-65535

• nmap端口扫描